/Engine/Source/Runtime/Experimental/Chaos/Public/Field/FieldSystem.h
Typed field nodes are used for the evaluation of specific types of data arrays. For exampe, TheFFieldNode::Evaluate(...) will expect resutls of type TFieldArrayView, and an example implementation is the UniformVectorField.
template<class T> class FFieldNode : public [FFieldNodeBase](API\Runtime\Chaos\Field\FFieldNodeBase)